Comprehensive functional and regression testing of 3,500 API endpoints, covering request/response validation, business-rule verification, negative scenarios, regression checks and related quality services.
HNI provides structured API functional and regression testing for large API estates. The service is designed to validate whether endpoints behave according to functional requirements, business rules and expected integration contracts.
For an environment with approximately 3,500 API endpoints, coverage is organized systematically so that critical business flows, dependencies and regression areas receive appropriate attention.
API endpoints targeted for comprehensive functional and regression validation.
Validate request methods, parameters, headers, payloads, required fields, data types and expected input conditions.
Check status codes, response payloads, schema expectations, headers, data accuracy and error responses.
Verify that APIs correctly apply business conditions, calculations, validations, authorization rules and workflow logic.
Test invalid inputs, missing data, boundary conditions, unauthorized requests and expected failure paths.
Revalidate existing functionality after changes so that fixes, enhancements and integrations do not introduce unintended impact.
Validate API interactions and data exchanges between dependent services and connected applications.
Understand endpoint groups, business criticality, dependencies and existing documentation.
Create functional, negative and regression scenarios based on requirements and risk.
Execute planned validations, capture evidence and record defects with reproducible details.
Repeat impacted tests, track closure and provide release-focused quality reporting.
